CH-47D Limitations

Question 1

Engine Oil Pressure

Answer 1

5 psi min at ground idle
35 psi min between 85-95% N1
50 psi min above 95% N1
35-90 psi normal ops
110 psi max emergency power
150 psi cold weather starts

Question 2

Engine Oil Temp

Answer 2

149° maximum

Question 3

XMSN Oil Temp Limits

Answer 3

140° FWD, COMB, AFT
190° ENG 1/2

Question 4

XMSN Oil Pressure

Answer 4

7 psi min ground idle
20 psi min at 100% RRPM
20-90 psi normal ops

Question 5

Start/Shutdown Wind Limits

Answer 5

APU start max tailwind 25kts
Main Engine start max tailwind 10kts

Question 6

Rotor RPM Limits

Answer 6

91 min transient
97-101 normal ops
102-105 transient
106 max transient power on
108 max power off
111 max transient

Question 7

PTIT Limits

Question 8

PTIT Limits

Answer 8

400-816 max continuous
854 max 30 min
899 max 10 min
930 max 2.5 min
940 max 12 seconds

Question 9

TQ Limits

Answer 9

100% AEO
123% OEI

Question 10

Fuel Flow Limit

Answer 10

2000 PPH 100% TQ

Question 11

Flight Boost HYD Pressure

Answer 11

2500 psi min
2500-3200 psi normal ops
3200 psi max

Question 12

Utility HYD Pressure

Answer 12

2500 psi min
2500-3500 psi normal ops
3500 psi max

Question 13

N1 Limits

Answer 13

50% ground idle
110% maximum

Question 14

N2 Limits

Answer 14

111.5% N2

Question 15

Max Gross Weight

Answer 15

50,000 lbs

Question 16

Max Hook Weights

Answer 16

FWD or AFT hook 17,000 lbs
FWD and AFT hook 25,000 lbs
CTR hook 26,000 lbs

Question 17

Landing Limits

Answer 17

Running landings 60 kts